Reasons for The Seasons Lab

Reasons for The Seasons Lab  

In science class we did a lab in which we examined the shadow and sunlight difference from season to season. We made a model earth and shone a light on it to examine. Here is what we had to do: 

1. Take a foam sphere and put a stick right through the middle of it 

2. Take a protractor and position the stick so it has a tilt of 23.5 degrees 

3. For simplicity, tape the stick to the protractor at the 23.5 angle 

4. Shine a flashlight and place the protractor-attached sphere so the protractor's bottom is flat 

5. To show summer, place it so the earth is closer to the flashlight 

6. To show winter, place it so the earth is farther from the flashlight 

7. Place a toothpick between the equator and the north pole 

8. Shine the light and examine the shadow 

9. Record Data 

Here is my recorded data:

Summer

• ·       During the summer there is more light shining
• ·       During the summer there is more of a shadow, probably because there is more light shining on the surface during the summer
• ·       On the surface the grid is stretched in the north pole area because it is in a different position and is partially blocked by other parts of the surface but it gets more sun in the summer than in the winter
• ·       The south pole is the opposite of north pole more sun in winter and less than summer

Winter  

• ·       During the winter there is less light because the planet is farther away from the sun
• ·       During the winter there is less of a shadow, the sun light does not hit as much as it does in the summer, creating a smaller shadow
• ·       The north pole is colder during winter because the surface is partially blocking the north pole   
•  The south pole gets more sun during winter because it is angled toward the sun 

I learned many things from this lab. I learned that the north pole is colder in the winter and hotter in the summer while the south pole is the exact opposite. From what I observed the shadow of the sticking out toothpick was bigger during the summer. This means that buildings and other objects might have a slightly bigger shadow during the summer. After the lab I looked up further info and found out that the regions in the arctic circle have a day that is very dark in the winter and one that is very bright in the summer.